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Don't pull in environ, not always safe. Global variables are bad anyway.

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Use execve when explicit environment variables ptr is available. Otherwise
just use execv.

llvm-svn: 28740
This commit is contained in:
Evan Cheng 2006-06-09 20:43:11 +00:00
parent 4a0ceb1e6d
commit cd37f47980
1 changed files with 4 additions and 8 deletions
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12
lib/System/Unix/Program.inc
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@ -29,8 +29,6 @@
#include <fcntl.h>
#endif
extern char** environ;
namespace llvm {
using namespace sys;
@ -147,13 +145,11 @@ Program::ExecuteAndWait(const Path& path,
}
}
// Set up the environment
char** env = environ;
if (envp != 0)
env = (char**) envp;
// Execute!
execve (path.c_str(), (char** const)args, env);
if (envp != 0)
execve (path.c_str(), (char** const)args, (char**)envp);
else
execv (path.c_str(), (char** const)args);
// If the execve() failed, we should exit and let the parent pick up
// our non-zero exit status.
exit (errno);